[poco] default of enable_netSSL_win set to false

* the default for the Windows-only option enable_netssl_win is set to false
* as the enable_netssl option's default is true (for any Platform), any consumer not specifying options will get the OpenSSL-supported NetSSL component
* for explicitly use the WinTLS-supported NetSSL_win, the options have to be switched by the consumer
* note that the Conan-Center-Index CI/CD will build and test the OpenSSL version on Windows

recipes/poco/all/conanfile.py

@@ -48,7 +48,7 @@ class PocoConan(ConanFile):
         "PocoMongoDB": _PocoComponent("enable_mongodb", True, ("PocoNet", ), True),
         "PocoNet": _PocoComponent("enable_net", True, ("PocoFoundation", ), True),
         "PocoNetSSL": _PocoComponent("enable_netssl", True, ("PocoCrypto", "PocoUtil", "PocoNet", ), True),    # also external openssl
-        "PocoNetSSLWin": _PocoComponent("enable_netssl_win", True, ("PocoNet", "PocoUtil", ), True),
+        "PocoNetSSLWin": _PocoComponent("enable_netssl_win", False, ("PocoNet", "PocoUtil", ), True),
         "PocoPDF": _PocoComponent("enable_pdf", False, ("PocoXML", "PocoUtil", ), True),
         "PocoPageCompiler": _PocoComponent("enable_pagecompiler", False, ("PocoNet", "PocoUtil", ), False),
         "PocoFile2Page": _PocoComponent("enable_pagecompiler_file2page", False, ("PocoNet", "PocoUtil", "PocoXML", "PocoJSON", ), False),